Liquid-dispensing apparatus



June 12, 1928. 1,673,545

L. E. BAKER ET AL LIQUID DISPENSING APPARATUS Filed Oct. 22, 1926 iflw ATTORNEY Patented June 12, 1928.

UNITED STATES PATENT OFFICE.

LINNAEUS E. BAKER, OF LONG BEACH, CALIFORNIA, AND WILLIAM F. BRANDT, OF

FORT WAYNE, INDIANA, ASSIGNORS T WAYNE COMPANY, OF FORT WAYNE, INF

DIANA, A CORPORATION OF INDIANA.

LIQUID-DISPENSING APPARATUS.

Application filed October 22, 1926. SerialNo. 143,498.

Our invention relates to liquid dispensing apparatus and particularly to means for insuring honest measurement of the l1qu1d dispensed from same.

5 The dispensing apparatus to which our improvements are particularly applicable 18 of the so-called visible type now generally in use in the sale of gasoline at filling stations. Such apparatus has a transparent 0 elevated reservoir into which the liquid is pumped and from which it is served.

There are pumps that will 'be afiected by our invention, one having a fixed fill pipe anda fixed drain-back pipe with a vertically ad ustable serve pipe extending into said reservoir from below and terminating thereins the other with a fixed fill pipe and a vertically adjustable drain-back pipe extending nto said reservoir from below and terminating therein, and with fixed means for serving from the bottom of the reservoir.

Sealers of weights and measures in some jurisdictions require that the elevated reservoir from which the liquid is dispense-d shall be filled to the zero mark near the topof the reservoir before any customer may be served, so that by observing both before and after he has been served each customer may know, without making any calculation, just how muchliquid has been delivered to him.

The principal object of our invention is to provide mechanism that will/ make it impossible to pump liquid into the reservoir until and unless the vertically adjustable tube has been raised to such a position as will cause the reservoir to retain enough liquid so that the liquid level will be above the zero mark when the pumping operation is completed. Excess liquid above the zero mark will be returned to the storage tank through the drain-back tube. 1

In the particular embodiment of our invention selected for illustration,

Figure 1 is an elevation of .a so-called visible gasoline dispensing apparatus with a part of the casing and reservoir broken away to disclose the pump, fill tube and valve, vertically adjustable drain-back tube and itsvalve and the means for operating said valves, the position of the valves shown being that which they would be in when the parts were proper position to begin two kinds of these visiblepumping liquid from the source of supply (not shown) into the transparent reservoir;

Fig. 2 isa vertical axial section through the top of the transparent reservoir and the tops of the. fill tube and train-back tub-e i and their valves, the valve connections being shown in full lines, all parts being in'the same position as in Fig. 1, and one side of the reservoir and cap being and Fig. the drain-back tube has, been lowered. so that it is now opened at the top, and the fill pipe valve has been lowered so that'it closes the top of the fill pipe.

Referring now to the drawings, A is the pedestal ofthe casing, a the base, a the bottom cylinder head on which the glass cylinder C, which forms the walls of the reservoir, rests, a? the top cylinder head which rests on the cylinder G, a the tie-rods which hold said cylinder securely in position, a a cover plate, and a the cap.

A hand operated pump P draws gasoline from an underground storage tank through tube p and delivers it to the reservoir C through fill tube F. Near the top the tube F has a plurality of outlet orifices 7 adapted to be opened and closed by a sleeve valve 3 is the same as Fig. 2 except that" broken away;

F which closes by gravity and may" be D has its top d cut square to form a seat on.

which the valve leather (2 of the valve 1) seats.

secured to the lever L by the pivot d".

Whenever "the tube D is lowered it is out "of contact with the valve D 1 The operation of .the apparatus is as fol ows:

' Assuming that a customer is to be served in the manner hereinbefore described as required by some sealers of weights and measures, and therefore that the reservoir C must be filled before any liquid is'served, the operator raises the tube D until it is is, closed by the valve 1), and by pressure The valve 1) has its forked stem d" in the position shown in Figs. 1 and 2, that 9 of the valve rod d on the lever L, said lever I has been raised carrying with it the valve F from the position shown in Fig. 3 to that shown in Fig. 2. Liquid may now be pumped into the reservoir C through the tube F and pumping should be continued until the liquid level is above the top of the tube D. If the customer desires to purchase eight gallons of gasoline tube D is then lowered to the figure 8 on the scale on the elevated container C. Lowering the tube D will result in opening the valve D and closing the valve F The apparatus is now ready to have the remaining eight gallons of liquid delivered from it through serve valve V.

We do not intend to limit ourselves to the precise mechanism shown herein but conceive as within the scope of our invention all forms of such apparatus herein claimed.

We claim as our invention and desire to secure by Letters Patent of the United States 7 1. In a liquid dispensing apparatus having an elevated reservoir from which liquid is dispensed, a bottom head for said reservoir, extending through "said bottom head a fixed fill tube with outlet port means for communicating with said reservoir, and a vertically adjustable tube with inlet port means for communicating with said reservoir, and inter-related valve means operable by the elevation of said adjustable tube to close said port means of said adjustable tube and open said port means of said fill tube.

2. In a liquid dispensing apparatus having an elevated reservoir from which liquid is dispensed, a bottom head for said reservoir, extend'ng through said bottom head a fixed fill tube with lateral ports communicating with said reservoir and a vertically adjustable tube with inlet port means for communicating with said reservoir, and inter-related valve means operable by the elevation of said adjustable tube to close said port means of said adjustable tube and open the ports of said fill tube.

3. In a liquid dispensing apparatus having an elevated reservoir from which liquid is dispensed, a bottom head for said reservoir, a fixed fill tube with lateral ports and a vertically adjustable open-ended tube, both extending upwardly through said bottom head and terminating within said reservoir, a normally closed sleeve valve for said fill tube to control the flow of liquid therethru into said reservoir, a valve for said adjustable tube to control the flow of liquid from said reservo r into said adjustable tube, and means operable by the elevation of said adjustable tube for closing the valve on said adjustable tube and opening the valve on said fill tube.

4. In a liquid dispensing apparatus having an elevated reservoir from which liquid is dispensed, a bottom head for said reservoir, a fixed fill tubewith lateral ports and a vertically adjustable open-ended tube, both extending upwardly through said bottom head and terminating within said reservoir, a lever pivoted to a fixed part of said apparatus, a sleeve valve for. said fill tube to control the flow of liquid thcrethru into said reservoir, an upwardly extending lug on said sleeve valve pivoted to said lever, a valve for said adjustable tube to control the flow of liquid from said reservoir into said adjustable tube, an upwardly extending stem from said second mentioned valve pivoted to said lever at a point between where said lever is pivoted to the apparatus and where the first mentioned valve lug is pivoted to the lever, so that upon the elevation of said adjustable tube that tube will be closed by its valve and the valve of the fill tube will be opened, and when said adjustable tube is lowered the fill tube valve will close by gravity.

In testimony whereof we have hereunto set our hands.

LINNAEUS E. BAKER. WILLIAM F. BRANDT. 

